As you can see above after installing android on your usb pen drive go to you BIOS SETUP and configure Boot Priority Choose your Pen Drive as First Boot Priority after that save and exit. your pc will start and load file from your USB Pen drive not from your hard disk ! it will look like this :

Select "Live CD - Run Android-x86 without installation" and
Hit Enter Key . After few seconds it will look like this :

Welcome screen will popup where you can able to select your language.Default its' English (US) click start